Proposed Changes by Subject—National Plumbing Code 2025

Div.A 1.2.1.1. Compliance with this Code

• 2318 - Acceptance of CCMC Code Conformity Assessments

Div.C 2.2.2. Plumbing Drawings and Related Documents

• 2318 - Acceptance of CCMC Code Conformity Assessments

Div.B 2.3.4.5. Support for Horizontal Piping

• 2133 - Installation of Drainage Piping Without Depressions

Div.B 2.4.2.1. Connections to Sanitary Drainage Systems

• 2130 - Device Connections to Sanitary Drainage Systems

Div.B 2.4.7.1. Cleanouts for Drainage Systems

• 2132 - Spacing of Cleanouts in Vertical Drainage Pipes

Div.B 2.4.7.2. Size and Spacing of Cleanouts

• 2132 - Spacing of Cleanouts in Vertical Drainage Pipes

Div.B 2.2.2. Plumbing Fixtures

• 2243 - Installation of Emergency Eye Wash and Shower Fixtures

Div.B 2.2.2.2. Conformance to Standards

• 2241 - Deletion of a Withdrawn CSA Standard and Introduction of Requirements for Additional Plumbing Fixtures

Div.B 2.2.7. Non-Ferrous Pipe and Fittings

• 2242 - Adds Requirements for Press-Connect Water Fittings

Div.B 2.2.10.5. Saddle Hubs

• 2244 - Addition of Requirements for Mechanical Tee Fittings

Div.B 2.6.3.1. Design, Fabrication and Installation

• 2174 - Use of the IAPMO Water Demand Calculator in the Design of Potable Water Systems

Div.B 1.3.1.2. Applicable Editions

• 2221 - Updates to Referenced Documents (Interim change) ^{Footnote 1}